DE1642364A1 - Synergists for fungicidal organotin compounds - Google Patents

Description

I> itter ± * eld, 5.4.1967

Young Indian: Dr. V / oIfGang liinze 1642364

x) r. iiubex't ϊ \ ν'ά & er

Dipl .- (/ heu.Dieter iCLöbzer

Synergists for f ungici de ü PganozinnvG rbi ndunp; en

The ßvflnuMnc botriffb the synex'gistic Ά ££ ect of the Jzilordex'ivate aromatic carbon fiber β on the fungicide: / irkun: j of OrganouinnVurbindun ^ en. ^

It is known that orranotin compounds are excellent

Jirjonsohaf ben bet-itaen and in the /) economists of some countries a variety of applications. Find. In-; "- ^ of the iioLen prices for üx \ -; anucinnderivate i.:ind nie-iric, o AmveiKtiingskonaonural; ions predictive; for a biocidal use can further tacrine tacrin ^ ef ', / ground by combining ii. with compounds having a synthetic effect.

G.; , eü'iVi! rti.f _} icannt raan for biocide Jr ^ anossinrulerivatü only oine f; o '.' iiijo number of iiJ, ynei '£ jißt; en. lis icb byJrannb that qa'ij; ornäro Aii-tniii / .irasalae and various t'honolo and Λ eijo! .derivatο oinen liynoctjiabiuchen jifi'ekb sul ¹

■ j O ν? -) i 3 / i 8 3 7

BATHROOM OFTIGINAL

biological effects of organotin compounds. The compounds listed are relative expensive agents which, due to their fixed form, cause certain difficulties in the formulation and which additional use of a suitable solvent request,

It is the awakening of the .invention through a combination of the active ingredients in organosiim with relatively cheap synergistic effects Compounds which are to be suitable as fluid stimuli at the same time as possible, the necessary application concentration beii.i to reduce the use of fungicides The invention is therefore based on the object of such compounds to seek who have met these demands »

It has been found that chlorinated aromatic hydrocarbons, for example olilobenzene,

p-olorotoluene,

p-dichlorobenzene and o-dichlorobenzene in

Gjmisch or

1,2,4-uriolobenzene,

the fungicidal. / linking of organotin linkages, for example Bis (bribubyltin) oxide,

l'ribubjrlzinnoxalab,

üu no butyl ζ i nnt ν if ο rini ab,

jjjrnergießiüch booLnflow. As a result, a decrease in the An.vorKUingükon ^ uiibration dor Organozinndorivabü boi VermLccxiung with; chlorinated aromatic Kohxenwas.'soi .'- ist.jxL'on iiejonübuL- deiA ruLnuü ', / active substance possible. the

_ 3 «■"

synergists according to the invention for organotin compounds are advantageous over the already known 'because they are relatively cheap and known to be good solvents are.

The synergism of chlorinated aromatic hydrocarbons The following tables show the funcidal effect of organotin compounds using the example of spore germination shown in Phytophthora infestans, Alternaria tenuis and Botrytis cinerea

Since the chlorinated aromatic hydrocarbons are in have a certain fungicidal effect in their pure form, they had to be diluted with acetone to the point of fungicidal inactivity. These mixtures became the organotin active ingredients added and tested against the fungi mentioned in comparison to the organotin / acetone combination.

a) solvents

lungicid inactive
chlorinated aroma! Concentration of
;. Hydrocarbons 100 % Botrytis Phytophthora Alternaria 50 %
acetone cinerea infestans tenuis 50 %
acetone 100 % acetone 100 % 1 %
acetone 50 %
in acetone Llonochlorobenzene 50%
in acetone in 50%
in acetone Mixture p- / o-di-
chlorobenzene 50 %
in acetone in 1 %
in acetone 1,2,4-trichloro
benzene 1 %
in acetone in

109819/1837

b) Solvent / active ingredient combination (solvent as under a):

Effective concentration of the active ingredient in%

• Solvent active ingredient Phytophthora Alternaria Botryl-

infestans tenuis tis

a

acetone Bis-ctpi-
butyltin) -
oxide Monobutyl
tin tri
foriaiat 0.1 % 0.01 % 0.1 % Monochlorine
benzene / acetone Il Il 0.001 % 0.001 % 0.0001% p-./0-dichlor-
benzene / acetone Il Tributyl tin
oxalate 0.001 % 0.001 % 0.001 % 1,2,4-trichloro
benzene / acetone " Il 0.001 % 0.001 % 0.001% acetone 0.01 % 0.01 % p- / o ~ dichior-
benzene / acetone 0.001 % 0.001 % acetone 0.01 % 0.01 % 0.01 % p- / o-dichloro
benzene / acetone 0.001% 0.001 % 0.001%

Bs showed an improvement in the fungicidal effectiveness the organotin formulations with chlorinated aromatic hydrocarbons versus the active ingredient / acetone combinations by one to two powers of ten

109819/1837

The following tables show the synergism of chlorinated aromatic hydrocarbons with the fungicidal effect of the organotin compounds using the example of the mycelial growth of Coniophora cerebella:

a) Effect of the pure solvent

Solvent jyiyzel growth in mm after

10 days .

Uri-treated 90 mm

Acetone 90 mm

p-ZO-dichlorobenzene 80 mm

p-chlorotoluene 80 mm

b) Effect of the solvent / active ingredient combination

Solvent active ingredient mortar growth in mm after

10 days

0.01 % active. 0.1 % active.

Acetone bis (tributyl tin) -

oxide 18 mm 0 mm

p-Zo-dichloro bis (tributyltin) -

benzene oxide S mm. 0 mm

p-chlorotoluene bis (tributyltin) -

oxide 10 mm 0 mm

109819/1837

In comparison to the active ingredient / acetone formulation a reduction in the combination of bis (tributyltin) oxide with p- / o-dichlorobenzene mixture or with p-chlorotoluene of the Bfyzel growth of Coniophora cerebella can be observed by about half

109819/1837

Claims (1)

^mm *? ^mm Claim . Synergists for fungicidally active organotin compounds, characterized by the use of chlorinated aromatic hydrocarbons, 109819/1837